diff options
author | Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> | 2010-01-29 23:55:18 -0500 |
---|---|---|
committer | Frederic Weisbecker <fweisbec@gmail.com> | 2010-02-03 19:07:12 -0500 |
commit | cd757645fbdc34a8343c04bb0e74e06fccc2cb10 (patch) | |
tree | b06a5b92674731846b4d22aa53c99d6099b304b7 /kernel | |
parent | c80d292f137275a1ed88e6ed515ecb457051f1a4 (diff) |
perf: Make bp_len type to u64 generic across the arch
Change 'bp_len' type to __u64 to make it work across archs as
the s390 architecture watch point length can be upto 2^64.
reference:
http://lkml.org/lkml/2010/1/25/212
This is an ABI change that is not backward compatible with
the previous hardware breakpoint info layout integrated in this
development cycle, a rebuilt of perf tools is necessary for
versions based on 2.6.33-rc1 - 2.6.33-rc6 to work with a
kernel based on this patch.
Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: "K. Prasad" <prasad@linux.vnet.ibm.com>
Cc: Maneesh Soni <maneesh@in.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin <schwidefsky@de.ibm.com>
LKML-Reference: <20100130045518.GA20776@in.ibm.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Diffstat (limited to 'kernel')
-rw-r--r-- | kernel/hw_breakpoint.c | 2 | ||||
-rw-r--r-- | kernel/perf_event.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/kernel/hw_breakpoint.c b/kernel/hw_breakpoint.c index 8a5c7d55ac9f..967e66143e11 100644 --- a/kernel/hw_breakpoint.c +++ b/kernel/hw_breakpoint.c | |||
@@ -360,8 +360,8 @@ EXPORT_SYMBOL_GPL(register_user_hw_breakpoint); | |||
360 | int modify_user_hw_breakpoint(struct perf_event *bp, struct perf_event_attr *attr) | 360 | int modify_user_hw_breakpoint(struct perf_event *bp, struct perf_event_attr *attr) |
361 | { | 361 | { |
362 | u64 old_addr = bp->attr.bp_addr; | 362 | u64 old_addr = bp->attr.bp_addr; |
363 | u64 old_len = bp->attr.bp_len; | ||
363 | int old_type = bp->attr.bp_type; | 364 | int old_type = bp->attr.bp_type; |
364 | int old_len = bp->attr.bp_len; | ||
365 | int err = 0; | 365 | int err = 0; |
366 | 366 | ||
367 | perf_event_disable(bp); | 367 | perf_event_disable(bp); |
diff --git a/kernel/perf_event.c b/kernel/perf_event.c index d27746bd3a06..2b19297742cb 100644 --- a/kernel/perf_event.c +++ b/kernel/perf_event.c | |||
@@ -4580,7 +4580,7 @@ static int perf_copy_attr(struct perf_event_attr __user *uattr, | |||
4580 | if (attr->type >= PERF_TYPE_MAX) | 4580 | if (attr->type >= PERF_TYPE_MAX) |
4581 | return -EINVAL; | 4581 | return -EINVAL; |
4582 | 4582 | ||
4583 | if (attr->__reserved_1 || attr->__reserved_2) | 4583 | if (attr->__reserved_1) |
4584 | return -EINVAL; | 4584 | return -EINVAL; |
4585 | 4585 | ||
4586 | if (attr->sample_type & ~(PERF_SAMPLE_MAX-1)) | 4586 | if (attr->sample_type & ~(PERF_SAMPLE_MAX-1)) |